Nfa A448 over I40
GoodRoane County, Tennessee · Just W of US 27 Exit · Structure no. 73I00400003
- Built
- 1969
- 56 years old, rebuilt 2018
- Condition
- Good
- inspected September 2024
- Type
- Tee Beam
- Concrete Continuous
- Length
- 251 ft
- 4 main spans
- Daily traffic
- 220
- 2020 count
- Owner
- State
- State Highway Agency
About this bridge
Nfa A448 over I40 is a concrete continuous tee beam carrying Nfa A448 over I40 in Roane County, Tennessee. It was built in 1969 and reconstructed in 2018, so it is 56 years old, older than the Tennessee average of 47.4 years.
The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 8 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
It carries about 220 vehicles a day, roughly 2% of them trucks, projected to reach 352 by 2042. The structure is 251 ft (76.5 m) long and 32 ft wide. If it were closed, the detour would be 14.9 mi (24 km).
Location
Open in Google MapsCondition and inspection
All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.
| Component | Rating | Meaning |
|---|---|---|
| Deck | 8 Very Good | No problems noted. |
| Superstructure | 8 Very Good | No problems noted. |
| Substructure | 8 Very Good | No problems noted. |
Structure
Traffic and service
Ownership and planned work
Frequently asked questions
When was Nfa A448 over I40 built?
It was built in 1969, making it 56 years old in 2025. It was reconstructed in 2018.
What condition is Nfa A448 over I40 in?
The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in September 2024.
How much traffic does Nfa A448 over I40 carry?
About 220 vehicles per day (2020 count), of which roughly 2% are trucks.
How long is Nfa A448 over I40?
The structure is 251 ft (76.5 m) long with a longest span of 75 ft (22.9 m) and a deck 32 ft wide.
Who owns Nfa A448 over I40?
It is owned by the State Highway Agency.